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TWI Certification
Certification Scheme for Personnel
Compliance through Competence
Recognised Third Party Organisation
Recognised third party

Recognised Third Party Organisation


TWI CL is a Recognised Third Party Organisation (RTPO) for the approval of inspectors, operators and procedures for permanent joints in accordance with the Pressure Equipment Directive, (97/23 EC). CSWIP certification enables welders, brazers and NDT operators to comply with the PED. 

Documents available for download

 TitleDownloadAdd To Basket
application/pdf01 - Qualification of Welding Procedures and Welders (107KB)DownloadAdd
 Requirements for the Qualification of Welding Procedures and Welders (Document No. CSWIP-PED -1-99)
application/pdf02 - Approval of NDT Personnel (154KB)DownloadAdd
 Requirements for the approval of NDT Personnel (Document No. CSWIP-PED -2-01)